I've often wondered this myself, however, I have also thought about it from the opposite angle. There are many sites that give no instruction as to how we are

I've often wondered this myself, however, I have also thought about it from the opposite angle. There are many sites that give no instruction as to how we are supposed to enter our credit card info. One can assume two possibilities: 1) The programmer of the site was ready, willing and able to parse multiple input types and simply strip out spaces, dashes, etc, or 2) I'm going to enter my credit card number into this page in a fashion not expected by said programmer and my much coveted Scarface Special Edition DVD will never show up at my door... Just tell me what format you want so I can have some peace of mind and not have to decide which method is the best.